baber/WOPTO huggingface dataset:
Patent GB-455859-A (GB)
Title: Improvements in or relating to photographic box-cameras
IPC: G03B17/04
Filed: 1935-04-25
Abstract: 455,859. Photographic cameras. GOOREYND, P. K. DE, 21, Denmark Street, Charing Cross Road, and KINGSTON, A. W., 33, Alfred Place, Bedford Square, both in London. April 25, 1935, No. 12463. [Class 98 (i)] A box-camera comprises a front wall, a view finder chamber 11, and a base having a housing 27 for a spare spool 28, moulded as a single structure from synthetic resin, the front wall being provided with an aperture to carry a spindle 18 supporting a lens carrier, a second aperture 15 to co-operate with the lenses on the carrier, and a third aperture to receive a view finding lens 14. The lens carrier carries a number of lenses of different character which may be brought one at a time into position and retained by a catch 20. The lenses may be made by the process described in Specification 416,826, [Group IV]. Specification 416,398 also is referred to.
Patent GB-125112-A (GB)
IPC: C01B3/06
Abstract: 125,112. Maxted, E. B., and Ridsdale, G. R. May 22, 1916. Hydrogen.-In preparing hydrogen by the alternate reduction and oxidation of iron oxide, a re. ducing-gas is used which contains less than 10 per cent by volume of a diluent, such as nitrogen, and more than 10 per cent. of carbon dioxide, the remainder being essentially hydrogen and carbon monoxide, and the carbon monoxide being present in not substantially less volume than carbon dioxide. The gas may be prepared by mixing carbon dioxide with water-gas or other reducing-gas, or by modifying the manufacture of water gas by employing excess of steam, or a lower temperature, or by passing the water gas through iron oxide &c. at 400-800‹ C.
Patent GB-861183-A (GB)
Title: A radiation alkylation process
IPC: C08F255/00
Filed: 1958-04-21
Abstract: Paraffin hydrocarbons having 2-12 carbon atoms together with mono-olefins having 3-12 carbon atoms in a ratio of 2-33 moles paraffin to one mole. olefin are irradiated with high energy ionizing radiation at 10-100 ats. until at least 103 roentgens has been absorbed, whereby alkylation is effected.  The mono-olefin may be replaced by an olefinic polymer, copolymer or interpolymer thereof. The products of reaction are normally liquid saturated branched chain hydrocarbons boiling at 85-440 DEG  F.; in examples, product analyses include C1 to C9 hydrocarbons.  Suitable paraffinic starting materials may have straight or branched chains; propane, butanes, pentanes, hexanes, heptanes and octanes and cyclic paraffins are specified. Specified olefins are propylene, butene, pentene, benzene and heptene and cyclic olefins.  Suitable starting mixtures are C3-C5 cuts from thermal or catalytic cracking, refinery feed stocks, including naphthas, field butanes which have been isomerized or partly dehydrogenated, refinery stabilizer bottoms and spent gases from catalytic polymerization processes, of some of which details are given: other constituents may comprise hydrogen, diolefins and naphthenes such as cyclohexane and methylcyclopentane.  The process may be carried out at 100-1000 DEG  F. for 1/2 -200 hours either in the vapour phase, e.g. at 500-900 DEG  F. or in the liquid phase, e.g. at 100-500 DEG  F. The process may be performed batchwise or continuously; in the latter case, the hydrocarbon feed may be first mixed with an olefin which may be added to any recycle stream (and, if desired, with a diluent, e.g. a highly refined mineral oil), then subjected to irradiation, the products separated conventionally and unreacted paraffin and olefin recycled.  The preferred radiation is g -rays, and the use of X-rays, accelerated electrons, b -rays, a -particles and neutrons is referred to.  Suitable sources of radiation are fission byproducts (e.g. "waste products" from nuclear reactors, through or around which the reactants may be passed), nuclear reactors (through which the reactants may be passed, if desired, to serve inter alia as moderator), and materials such as Co-60 which may be made radioactive by neutron irradiation.  Suitable dosages may be up to 106 megaroentgens, and examples providing details of this and other features are given.
Patent GB-352130-A (GB)
Title: Improvements in and relating to the head lamps or lights of vehicles
IPC: F21S8/10
Filed: 1930-04-24
Abstract: 352,130. Vehicle lamps. GRIEVE, E., The Glebe, Selkirk. April 24, 1930, No. 12638. [Class 75 (iv).] Each of a pair of vehicle head-lights comprises a centre lamp a and two side lamps b, c, each lamp being fitted with an electric light bulb, a reflector, and a lens, the centre lamp projecting a beam of light directly forwards, and the side lamps projecting beams of light directly to the sides of the road, or to the sides and only slightly forwards, the side lamps being switched on when the centre lamp is switched off or dimmed. The lamps may be mounted on a central pillar d or within a single casing e.
Patent GB-260211-A (GB)
Title: Writing apparatus with writing tablet
IPC: B43L13/00
Filed: 1926-05-18
Abstract: 260,211. M³ller W,. P. Oct. 24, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Pantographic apparatus.-Apparatus for copying characters &c. for marking labels &c. comprises a frame 1 having flanges 2, 4 within which is slidably disposed a pattern plate 3 which is formed with notches 5 adapted to be engaged by a projection 4<1> on the flange 4. The pantograph comprises links 12 - - 15, the link 12 being adjustable to definite positions along the links 13, 15, and having a number of apertures 22, into any one of which can be inserted a tube &c. 23 carrying the marking instrument. The fixed pivot 10 of the pantograph is mounted on a hinge 8 so that the linkage can be lifted clear of the wilting surface. The pin 6 engaging in the pattern plate is mounted in a carrier 17 under the influence of a spring 18 which tends to lift the pantograph from the drawing surface. The frame 1 has an extension 6 on which can be placed a ruler &c. to steady the instrument.
Patent GB-664629-A (GB)
IPC: F23D14/70
Filed: 1949-05-12
Abstract: 664,629. Thermally-actuated valves. BRITISH THERMOSTAT CO., Ltd. Feb. 24, 1950 [May 12, 1949], No. 12718/49. Class 135 [Also in Group XI] In a gas burner a bimetallic hoop 18 secured to and surrounding the mouth of a Venturi mixing tube so as to be heated by the flames thereat bears against the head of a lever 20 which bears, near its pivoted lower end 21 against a rod 10 extending through a bore in the body of the burner and adapted to engage a spring-urged ball 7, movable between two seats 8, 9 to control the flow of gas to the burner nozzle 5. The Venturi tube 6 is rotatable in a clamp 15 so as to vary the bearing force between the bimetallic hoop and the lever 20 whereby the temperature at which the hoop actuates the valve is altered.
Patent GB-1486403-A (GB)
Title: Interlock switch mechanism for telephone subset
IPC: H04M1/08
Filed: 1976-03-30
Abstract: 1486403 Interlock switch mechanism for a telephone subset STANDARD TELEPHONES & CABLES Ltd 30 March 1976 12720/76 Heading H4J A programme store slide switch 14 for a subset having repertory coil making facilities has a bar 15 with a hooked end 19 mounted on the slider 16, the hooked end 19 engaging a recess 18 on the cradle base 12 of the hook switch 11 when the slide switch is operated to its programme or store position for insertion of a number into the repertory, and the sub-set is in the on hook condition so that the slide switch 14 remains operated and the sub-set remains in its on-hook condition when the hand set (not shown) is lifted. On replacement of the hand set at the end of a programming operation spring 17 returns the slide switch in its standby position. When the hand set is lifted slide switch 14 is prevented from operating by cradle base 12 (Fig. la, not shown).
Patent GB-1392082-A (GB)
Title: Process for removing co2 from gas mixtures supplied to fuel cells
IPC: H01M8/04
Filed: 1972-03-20
Abstract: 1392082 Fuel cells VARTA AG 20 March 1972 [27 March 1971] 12838/72 Heading H1B A fuel cell 16 is supplied at 3 with hydrogen derived from a hydrogen reformer 14, CO 2  being removed from the gas mixture by an absorber 9. The gas absorber 9 is of the kind having interconnected coarse and fine pores, the gas mixture flowing through the coarse pores and washing liquid flowing through the fine pores. The washing liquid flows through a recirculating path including a desorber 10 and pump 11 and returns to the absorber 9, the CO 2  being discharged to the atmosphere at 8. Air enters the fuel cell through a pump 21, and may leave at 6 and be supplied at 7 to the desorber whereby the nitrogen in the air may serve to remove the CO 2 . The pump 11 may be controlled by a CO 2  concentration detector 20 so that the rate of washing liquid circulated is related to the fuel cell output. To ensure that the gas pores of the hydrogen electrodes in the fuel cell are not flooded by electrolyte and that the coarse gas pores of the absorber 9 are not flooded by the washing liquid, it is necessary to control both the pressure of the washing liquid and the pressure of the hydrogen gas in relation to the pressure of the electrolyte in the fuel cell. This is done by valves 13, 15 controlled, respectively, by pressure comparators 19, 18.
Patent GB-1169667-A (GB)
Title: Emulsifiable Glass Mold Lubricants
Inventor: BEERBOWER ALAN
IPC: C10N30/00
Filed: 1968-03-18
Abstract: 1,169,667. Lubricants. ESSO RESEARCH & ENG. CO. 18 March, 1968 [30 March, 1967], No. 12922/68. Heading C5F. An emulsifiable oil concentrate comprises (a) 40-94 wt. per cent of a petroleum base stock consisting of a bright stock having a molecular weight of 550-900 and 0-40 wt; per cent of the base of a hydrocarbon solvent and (b) the balance comprising at least 0À5 wt. per cent of each of (i) the reaction product of 2-20 moles of a C 2 -C 3 olefin oxide with one mole of an aliphatic C 10 -C 20  alcohol, acid, amide or amine or a mono- or di-C 8- C 12  alkyl-phenol, (ii) a neutralized phosphosulphurized polyolefin, an alkenyl succinic acid, anhydride or neutralized product thereof, wherein said polyolefin and alkenyl groups have molecular weights of 400-3000 and are derived from C 2 -C 5  olefins and (iii) a C 4 -C 12  aliphatic alcohol, a C 4 -C 8  tertiary alcohol, cyclohexanol, C 1 -C 4  alkyl cyclohexanol or a mono- or di-C 4 -C 12  alkylphenol. Solvents specified are alkyl aromatics, paraffins and solvent naphthas. The concentrate may also contain alkanol-amines, sodium and calcium petroleum sulphonates, molybdenum disulphide, boron nitride, 2,6-ditertiary butyl 4-methyl phenol and nitromethane derivatives.
Patent GB-296820-A (GB)
Title: Improvements in and relating to miners' and other electric safety lamps
IPC: F21V33/00
Filed: 1927-05-13
Abstract: 296,820. Maurice, W., and Gulliford, A. G. May 13, 1927. Gas analysis. - In miners' electric safety lamps of the kind provided with a fuse wire in series with the bulb for detecting methane, the fuse is normally short-circuited and is brought into action by pressing a button. In the illustrated modification the cap b of the battery case is provided on its underside with five contacts h - - h<4> connected as shown in Fig. 5, so that in screwing on the cap the contacts h, h<2> first engage the battery contacts placing the bulb alone in circuit, while on further rotation the contact h<3> is engaged bringing the fuse into circuit. The latter is mounted on a detachable holder, as shown in Fig. 6, and fits into slots o, p, Fig. 5. It is short-circuited by the spring q which can be depressed out of contact with the pillar p<2> by means of the pushbutton r. The fuse is enclosed in the perforated casing j attached to the cap b.
Patent GB-104831-A (GB)
Title: Improvements in Apparatus for Cutting the Grooves or Flutes of Twist Drills, Reamers and the like.
Inventor: BEST ISAAC
IPC: B23C3/32
Filed: 1916-09-14
Abstract: 104,831. Best, I. Sept. 14, 1916. Milling helical surfaces.-A milling-lathe of the type described in Specification 1260/13 has a special mandrel-traversing gear, stopmotion, and indexing-mechanism. The mandrel q, Fig. 1, grooved at q<1> according to the pitch of the groove to be cut, is rotatably connected at o to a cross-head n guided at n<1>, n<2> and carrying pins m engaging a cam k rotated by worm gearing f. At the completion of one cycle of operations, a projection on the cam trips a lever x<2> linked to shift a clutch on the power shaft b. The cam has sharp drops between the rises, allowing a quick return by a spring s, a cushion being provided at 18. The number of rises on the cam corresponds to the number of flutes. When several cuts are to be taken, additional rises may be provided, or the trip projection may be on a member geared to the cam shaft, which then makes more than one revolution per cycle. A sliding bar 14 is advanced to such an extent during the forward feed that, at the close of the return stroke, it engages a projection 13 on the chuck-bearing sleeve to hold it against rotation for the interval between one flute and the next. A sliding sleeve 7 on the mandrel is normally held by a spring 12 with V-projections 10 in engagement with corresponding notches in a sleeve 4 secured to the sleeve 3, but yields when a projection 13 is arrested. Steady rests.-The work is supported, by a tubular rest 16 slotted at 17 to pass the milling- cutters.
Patent GB-1196356-A (GB)
Title: Transitory Hologram Apparatus
Inventor: GERRITSEN HENDRICK JURJEN
IPC: G03H1/06
Filed: 1968-03-18
Abstract: 1,196,356. Radar. R.C.A. CORPORATION. 18 March, 1968 [20 March, 1967], No. 13034/68. Heading H4D. [Also in Divisions G2-G3] A transitory hologram is produced by placing an electromagnetic energy transmission medium 220 having a short-persistence transmission characteristic within a given wavelength interval which is a non-linear function of the intensity of electromagnetic energy being transmitted therethrough in a position to be illuminated by a reference beam 216 and an information beam 218 emitted by a laser 200. A third laser beam 222 from a second laser source 202 may be directed to the medium, and it may be of longer wavelength and higher intensity than the other two beams. Scenes illuminated in infra-red or microwaves may be viewed in visible light. Suitable materials for the transmission medium are a mica sheet filled with Cryptocyanine, saturable absorbers such as selenium films, materials with strong electrooptical effects such as nitrobenzene, crystals such as KDP, ADP, LiNbO 3 , or materials with large shifts in bandgap in strong light fields such as GaAs and SbSi. An embodiment is described (Fig. 3, not shown) which uses two beams, one simultaneously as a reference and readout beam and the other as the information. The beams may be essentially non-coherent, the interference pattern constantly varying in time although it may be accurately reconstituted.
Patent GB-1381808-A (GB)
Title: Portable amplifier and speaker
IPC: H05K5/00
Filed: 1972-03-21
Abstract: 1381808 Electrophonic musical instruments W L KIMBELL and R P EDLUND 21 March 1972 13042/72 Heading G5J [Also in Divisions H3 and H4] A portable housing 10, consists of two sections 12 and 14 which contain a loudspeaker 30, volume control 27, jack socket 24, and, battery unit 28, transistor amplifier 29, respectively, and may be used to amplify and reproduce the sound of a musical instrument, e.g. electric guitar, the reproductive quality of which may be varied to produce a " wah-wah " effect by altering manually or otherwise the angular spacing between the housing sections 12, 14 which are pivoted together by hinges 16, thereby altering the volume of air behind the loudspeaker 30 within the enclosure 10. In further embodiments, a spring 45, Fig. 4 (not shown) may be included, secured to housing section 12 in the upper portion of the housing 10 to space the sections 12, 14 apart at a predetermined angle. Actuation of the device may then be accomplished by means of the musician's foot, as in an another embodiment, Fig. 5, where a rear panel 42 is hinged on the rear of housing 10, and secured thereto by a coil spring 46, actuation by foot being accomplished by flange 44, to achieve a similar effect to that described in the main embodiment.
Patent GB-165027-A (GB)
Title: Improvements in or relating to time limit relays, circuit breakers or the like
IPC: H01H71/44
Filed: 1920-02-09
Abstract: 165,027. Reyrolle & Co., Ltd., A., Leeson, B. H., and Mirrey, J. Feb. 9, 1920. Electromagnetic switches; retarding-devices. - Relays, circuit-breakers, or like apparatus are connected to a retarding train of wheels J by a teothed sector H having a slot G engaged by a pin F attached to a relay arm A. The pin slips out of the slot after a certain travel and allows the arm to drop quickly upon contacts K. The retarding-device may be the centrifugal governor arrangement described in Specification 163420.
Patent GB-552677-A (GB)
Title: Improvements in or relating to machines for producing concrete reinforcing members
IPC: B21D11/15
Filed: 1941-10-10
Abstract: 552,677. Twisting rods axially or together. PARFITT, A. W. (Trias, Akt.-Ges.). Oct. 10, 1941, No. 13075, [Classes 83 (iii) and 83 (iv)] Chucks.-In an apparatus for twisting concrete reinforcing rods axially or together by feeding the rod. or rods into one or more hollow chucks provided with movable gripping jaws by which they are gripped and twisted and then removing the rods by feeding them longitudinally through the chucks, the jaws are moved by displacement of tapering members, the ends of which are extended outwardly and slidably attached to an open-ended hollow member mounted for axial displacement in a cylinder. The apparatus is provided at opposite ends with a head containing a rotatable chuck-carrying sleeve 1 and a head having a non- rotating chuck. The sleeve 1 which is rotated by gearing 20 from a motor has a tapered bore with grooves 6 in which are slidably mounted wedge-shaped gripping jaws 3 which have T- shaped ends engaging similar slots in an axially movable bushing 4 slidable in a cylinder 5. The bushing is engaged by a spring 11 the initial tension of which is adjusted by a nut 13 screwing in the cylinder 5. The cylinder is provided with an external screw-thread 14 engaging the threaded interior of a member 15 provided on its outer surface with a pair of racks 16 engaged by pinions 18 rotated by an electric motor. In operation, the cylinder 5 is first rotated by hand until the jaws 3 are advanced under the action of the spring 11 sufficiently to adjust them to the diameter of the rods to be twisted. The traversing motor is then switched on to retract the jaws and then the rods to be twisted are fed through the chucks of the stationary head into the jaws 3 of the rotary head. Feeding is effected by three pairs of motor driven grooved rolls arranged respectively on the outer sides of and between the two heads. The traversing motor is then put in to move the jaws 3 so that they grip the work the motor being automatically cut off through a limit switch. The motor for rotating the head 1 to perform the twisting operation is then put in. This motor is automatically switched off when a predetermined number of twists has been completed. The rod may be placed under a predetermined degree of tension prior to twisting. In another form a number of rods or groups of rods may be twisted simultaneously by providing each headstock with a number of, e.g., three, parallel chucks connected together by bevel gear from a shaft rotated by a belt from a single motor. Specifications 516,165 and 523,089, [both in Group X], are referred to. According to the Provisional Specification, the spring may be replaced by fluid pressure. Further predetermined tension may be applied to the rod before twisting by providing the stationary headstock with separate slidable and fixed chucking elements, the slidable element being operated by toggle lever mechanism operated by a right- and left-handed screw driven through a worm by an electric motor.
Patent GB-132066-A (GB)
IPC: G01W1/00
Abstract: 132,066. Aeronautical Instrument Co., and Brewer, G. Sept. 18, 1918. Meteorological appliances.-An apparatus for determining the direction of travel of the clouds and hence of the wind comprises a reflecting plate surrounded by a stationary surface bearing compass points, and means whereby the direction may be indicated on the compass scale. As shown in Fig. 3, the reflecting plate 4 is revoluble, and has marked upon it a diametrical line 6 and lines 7 parallel thereto. The plate 4 is turned when in use until the clouds, as seen by reflexion in the plate 4, appear to travel along the lines, and the direction of travel is read from the position of the arrow head on the line 6 with respect to the scale. In a modification, the plate 4 is stationary and a pointer with or without parallel wires attached thereto is detachably pivoted at its centre. The reflecting plate may comprise a disk of clear glass with a blackened under surface. The apparatus may be mounted on a stand or on a bracket hinged to the outer part of a window frame, means being provided in the latter case whereby the disk or pointer may be rotated from within the room.
Patent GB-1037080-A (GB)
Title: Improved process of steelmaking by the use of a bottom-blown basic-lined converter
IPC: C21C5/34
Filed: 1963-04-03
Abstract: Crude iron containing .C.3.5 - 4 .Mn.0.8 - 1.3 .Si.0.3 - 0.6 .P.1.5 - 2 .S.0.04- 0.08 .Fe.balance is refined in a bottom-blown basic converter, there being added at the end of the carbon burn-off a slag produced in the refining of crude iron containing .C.3.5 - 4.5 .Mn.0.7 - 4 .Si.0.3 - 1.3 .P.0.08 - 0.32 .S.0.06 maximum .Fe.balance the latter process being carried out either in an open hearth furnace or by the process of Specification 1,037,078.
Patent GB-437947-A (GB)
Title: Improvements in or relating to electrical storage batteries
IPC: H01M4/70
Filed: 1934-05-02
Abstract: 437,947. Batteries. FULLER, L., 160, Cromwell Road, Kensington, London, FULLER, G. J. A., White Gates, Loughton, and SUDLOW, E. W., 13, High Road, Ilford, both in Essex, and HAYES, T. W., 31, Bracken Gardens, Barnes, Surrey. May 2, 1934, No. 13280. Addition to 383,529. [Class 53] The inner electrode of the storage cell claimed in the parent Specification is provided with a cage 25 to assist in keeping the active material in place. The cage which may be made of metal or insulating material may be insulated from the core 21 as shown in Fig. 1, or it may be made in one with the flange 22 as shown in Fig. 2. The active material is introduced through the open top of the cage.
Patent GB-1499237-A (GB)
Title: Water repellent gypsum composition
IPC: C04B24/00
Filed: 1976-04-01
Abstract: 1499237 Water repellent composition MITSUBISHI CHEMICAL INDUSTRIES Ltd 1 April 1976 [3 April 1975] 13318/76 Heading C1H A water repellent gypsum composition comprises gypsum and an aqueous paraffin emulsion prepared by emulsifying (a) paraffin hydrocarbon having a melting point of 40-80‹ C. and (b) an oxidized paraffin having an acid value of 10 to 70 at a ratio of 97:3 to 50:50 by weight in water, in the presence of a water soluble alkali metal compound or ammonium compound (e.g. alkali metal hydroxide, alkali metal carbonate or bicarbonate or ammonium hydroxide). In the emulsification an emulsifier, e.g. polyoxyethylenealkyl ethers and esters, polyoxyethylenealkylaryl ethers, polypropyleneglycolpolyethyleneglycol ethers, polyoxyethylenesorbitan fatty acid esters and sucrose esters may be used. The composition may be mixed with an aqueous polymer emulsion or solution (e.g. of an acrylic ester polymer, of vinyl acetate homopolymers and copolymers, or of a reaction product of urea, formalin and hexamethylenetetramine). Other additives such as lightweight aggregates, e.g. perlite, vermiculite and microballoon, blowing agents, reinforcing materials, e.g. glass fibres, asbestos and rock wool and setting speed modifiers may be present in the composition.